Mechanically-operated pencil



I a O F F l C E ARTHUR E. MOORE, F CONIMICUT, RHODE ISLAND, ASSIG-NOR1'0 REX MANUFAC- TUBING 00., 0F PROVIDENCE, RHODE ISLAND, A CORPORATIONOF RHODE ISLAND.

MECHANICALLYOPERATED PENCII'J- Application filed July 14, 1925. SerialNo. 43,575.

[I '0 all whom it may concern:

Be it known that I, ARTHUR lE. MOORE,

a citizen of the United States, residing at Conimicut, in the county ofKent and State of Rhode Island, have invented certain new and usefulImprovements in Mechanic-ally- Operated Pencils, of which the followingis a specification;

This invention relates to an improvement in the construction ofmechanically-fed lead pencils, and has for its object to provide in sucha pencil a barrel portion having a point sleeve bushing secured at oneend thereof and a frusto conical sleeve formed separate and independentof the bushing and secured thereon by a point end member adjustably heldin the end of the bushing.

With these and other objects in view, the invention consists of certainnovel features of construction, as will be more fully described, andparticularly pointed out in the appended claims.

In the accompanying drawings:

7 Figure 1 is a side elevation of my improved pencil showing the ointedend partly broken away to better illustrate my improved construction.

Figure 2 is a detail of the point sleeve bushing in section.

Figure 3 is a detail of the frusto-conical sleeve in section.

Figure 4 is a detail of the point end member in section.

Heretofore in the forming of the pointed end portion of a pencil Wherethe preciousmetal conically-shaped sleeve was of the full length of thetapered portion and drawn substantially to a sharp point, it was foundin practice that this reduced end portion of many of the sleeves inhammering them down so fine were injured and a large percentage becameimperfect and so lost. To obviate this diflic-ulty, I have shortenedthis sleeve member at its point end thus reducing its cost and loss bywaste, I'have provided a shouldered point end member of non-rustingmaterial such as nickel silver and the like and have threaded thismember into the bushing with its shoulder engaging the adjacent end ofthe sleeve, whereby the shortened sleeve is gripped and bound againstthe end of the barrel portion, by which construction the cost ,ofassembling the parts is reduced and may be done very rapidly withoutsoldering and when assembled this point-end member in binding the sleeveagainst the body of the pencil also serves to bind the screw portions ofthe end member in its bushing and the bushing in its barrel portion, andthe following is a'detailed description of the present embodiment of myinvention and showing one construction of pencil by which theseadvantages results may be accomplished With reference to the drawings,10 designates the barrel or body portion of a pencil, which may be madeof any suitable material, but which is preferably made of a rubbercomposition tubing cut to the desired length, the tubing may also bemade in a.

variety of colors to vary the appearance of the pencils.

This tubing adjacent the pointed end of the pencil is internallythreaded as at 11 and a so-called point sleeve bushing 12 is formedpreferably of base metal having a threaded shank portion 13 adapted tobe screwed into the threaded end of the barrel. This bushing isfrusto-conical in shape having a central bore 14: for the reception of aspring 18 and other lead-operating members and is threaded at its lowerend 15.

Fitted over this bushing member is a sleeve 16 of frusto-conica-l shape.This sleeve may be formed of any of the precious metals and ispreferably of a length greater than the'bod'y portion of the bushing sothat its lower end portion 17 will extend beyond the corresponding endof the bushing.

In order to lock these parts together, I have provided a point endbushing 19, the body of which is drawn to a fine end as at 20 throughwhich the lead 21 projects and this member is provided with a shankportion 22 threaded at its upper end to screw into the threaded portion16 of the bushing thus providing a shoulder 23 on this member againstwhich rests the reduced lower end of the sleeve so that when this memberis screwed into the bushing it serves to bind the opposite end of thesleeve against the end of the barrel portion of the pencil and when thismember is set up tightly, the sleeve serves as a check nut to bind thethreaded portion of this member in the lower end' of the bushing andalso the threaded portion of the bushing tightly in its threadedengagement with the barrel thus locking all of these end parts firmlytogether.

By my im roved construction the sleeve member may e made infrusto-conical shape and by forming the sleeve in this shape withoutdrawing it down to a fine pointed end, obviates the most delicate ortionof the hammerin operation in the orming of this sleeve and thuseliminates a large portion of the heretofore wasted precious metals, dueto imperfect work in trying to draw down the tube end to so fine apoint; also by this construction of threading the point end member intothe bushing member this sleeve member is readily bound in position overits bushing; also this point end member by its s ec al construction is ascrewmachine product and is, therefore, quite inexpensive to produce.

Further, but this construction of binding the sleeve between the pointend member and the body of the pencil the necessity of a solde ingoperation is eliminated.

The foregoing description is directed solely towards the constructionillustrated, but'I desire it to be understood that I re- 'serve theprivilege of resorting to all the mechanicalchanges to which the deviceis susceptible, the invention being defined and limited only by theterms of the appended claims.

I claim:

1. In a mechanically-operated pencil, a barrel portion, a point sleevebushing secured to one end thereof, a tapered sleeve fitted over thebushin having one end shouldered against the arrel, and a point endmember secured to said bushing and provided with a shoulder for engagingthe r which the cured in one end thereof, a tapered sleeve over thebushing having one end shouldered against the barrel and a point endmember having threaded engagement with said bushing and provided with ashoulder engaging the adiacent end of the sleeve to bind it against t ebarrel.

3. In a mechanically-operated pencil, a barrel portion, a tapered pointsleeve bushing adjustably secured to one end thereof, a frusto-conicalsleeve over the bushing having one end abutting against the barrel, anda point end member having threaded engagement with said bushing andprovided with a shoulder to abut against the end of the sleeve to bindit against the barrel portion. a

4:. In a mechanically-operated pencil, a barrel portion, a tapered pointsleeve bushing threaded into one end of said barrel, a

frusto-conical sleeve positioned over the bushing with its end portionextending beyond that of said bushing, and a point end member having ashank portion threaded into said bushing and provided with ashoul- 'derportion engaging the-extended end of said conical member,

, whereby the setting up of the point member binds the sleeve againstthe barrel and the bushing threads in the barrel.

In testimony whereof I aflix my signature.

ARTHUR E. MOORE.

